diff --git a/src/Reactor/SubzeroTest.vcxproj b/src/Reactor/SubzeroTest.vcxproj
index a64f454..47d13b3 100644
--- a/src/Reactor/SubzeroTest.vcxproj
+++ b/src/Reactor/SubzeroTest.vcxproj
@@ -91,9 +91,9 @@
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       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>SZTARGET=X8632;ALLOW_DUMP=0;ALLOW_TIMERS=0;ALLOW_LLVM_CL=0;ALLOW_LLVM_IR=0;ALLOW_LLVM_IR_AS_INPUT=0;ALLOW_MINIMAL_BUILD=0;ALLOW_WASM=0;ICE_THREAD_LOCAL_HACK=0;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
-      <AdditionalIncludeDirectories>$(SolutionDir)third_party\googletest\googletest\include\;$(SolutionDir)third_party\googletest\googletest\;SubmoduleCheck;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(SolutionDir)third_party\googletest\googletest\include\;$(SolutionDir)third_party\googletest\googletest\;$(SolutionDir)third_party\pnacl-subzero\src\;$(SolutionDir)third_party\pnacl-subzero\unittest\;$(SolutionDir)third_party\llvm-subzero\include\;SubmoduleCheck;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <ForcedIncludeFiles>gtest/gtest.h</ForcedIncludeFiles>
     </ClCompile>
     <Link>
@@ -107,9 +107,9 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>SZTARGET=X8664;ALLOW_DUMP=0;ALLOW_TIMERS=0;ALLOW_LLVM_CL=0;ALLOW_LLVM_IR=0;ALLOW_LLVM_IR_AS_INPUT=0;ALLOW_MINIMAL_BUILD=0;ALLOW_WASM=0;ICE_THREAD_LOCAL_HACK=0;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
-      <AdditionalIncludeDirectories>$(SolutionDir)third_party\googletest\googletest\include\;$(SolutionDir)third_party\googletest\googletest\;SubmoduleCheck;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(SolutionDir)third_party\googletest\googletest\include\;$(SolutionDir)third_party\googletest\googletest\;$(SolutionDir)third_party\pnacl-subzero\src\;$(SolutionDir)third_party\pnacl-subzero\unittest\;$(SolutionDir)third_party\llvm-subzero\include\;SubmoduleCheck;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <ForcedIncludeFiles>gtest/gtest.h</ForcedIncludeFiles>
     </ClCompile>
     <Link>
@@ -125,9 +125,9 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>SZTARGET=X8632;ALLOW_DUMP=0;ALLOW_TIMERS=0;ALLOW_LLVM_CL=0;ALLOW_LLVM_IR=0;ALLOW_LLVM_IR_AS_INPUT=0;ALLOW_MINIMAL_BUILD=0;ALLOW_WASM=0;ICE_THREAD_LOCAL_HACK=0;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-      <AdditionalIncludeDirectories>$(SolutionDir)third_party\googletest\googletest\include\;$(SolutionDir)third_party\googletest\googletest\;SubmoduleCheck;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(SolutionDir)third_party\googletest\googletest\include\;$(SolutionDir)third_party\googletest\googletest\;$(SolutionDir)third_party\pnacl-subzero\src\;$(SolutionDir)third_party\pnacl-subzero\unittest\;$(SolutionDir)third_party\llvm-subzero\include\;SubmoduleCheck;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <ForcedIncludeFiles>gtest/gtest.h</ForcedIncludeFiles>
     </ClCompile>
     <Link>
@@ -145,9 +145,9 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>SZTARGET=X8664;ALLOW_DUMP=0;ALLOW_TIMERS=0;ALLOW_LLVM_CL=0;ALLOW_LLVM_IR=0;ALLOW_LLVM_IR_AS_INPUT=0;ALLOW_MINIMAL_BUILD=0;ALLOW_WASM=0;ICE_THREAD_LOCAL_HACK=0;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-      <AdditionalIncludeDirectories>$(SolutionDir)third_party\googletest\googletest\include\;$(SolutionDir)third_party\googletest\googletest\;SubmoduleCheck;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(SolutionDir)third_party\googletest\googletest\include\;$(SolutionDir)third_party\googletest\googletest\;$(SolutionDir)third_party\pnacl-subzero\src\;$(SolutionDir)third_party\pnacl-subzero\unittest\;$(SolutionDir)third_party\llvm-subzero\include\;SubmoduleCheck;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <ForcedIncludeFiles>gtest/gtest.h</ForcedIncludeFiles>
     </ClCompile>
     <Link>
@@ -167,6 +167,14 @@
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\..\third_party\googletest\googletest\src\gtest-all.cc" />
+    <ClCompile Include="..\..\third_party\pnacl-subzero\unittest\AssemblerX8632\XmmArith.cpp">
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</ExcludedFromBuild>
+    </ClCompile>
+    <ClCompile Include="..\..\third_party\pnacl-subzero\unittest\AssemblerX8664\XmmArith.cpp">
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
+    </ClCompile>
     <ClCompile Include="Main.cpp" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
diff --git a/src/Reactor/SubzeroTest.vcxproj.filters b/src/Reactor/SubzeroTest.vcxproj.filters
index 7c19272..09083bf 100644
--- a/src/Reactor/SubzeroTest.vcxproj.filters
+++ b/src/Reactor/SubzeroTest.vcxproj.filters
@@ -21,5 +21,11 @@
     <ClCompile Include="..\..\third_party\googletest\googletest\src\gtest-all.cc">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\third_party\pnacl-subzero\unittest\AssemblerX8632\XmmArith.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\third_party\pnacl-subzero\unittest\AssemblerX8664\XmmArith.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/third_party/pnacl-subzero b/third_party/pnacl-subzero
index f53580b..b001cc4 160000
--- a/third_party/pnacl-subzero
+++ b/third_party/pnacl-subzero
@@ -1 +1 @@
-Subproject commit f53580b063d9a206e72a2b4166aff2c62e71555d
+Subproject commit b001cc4c0bea8e13be1d6733ef0f96fe5706fc21